Machine for use in painting small objects



Nov. 28, 1933 Fllied NOV. 19, 1931 2 Sheets-Sheet l NOV. 28, c A HT1,937,439

AOHIKE FOR USE IN PAINTING SMALL OBJECTS Filed NOV. 1 1931 2Sheets-Sheet 2 Patented Nov. 28, 1933 OBJECTS.

Clifford A.; Schacht, Huntington, Ind.

Applicati n Nq emb r 19.1 93

l Serial..No. 576,157

3 claims (oi; 9H0) This. invention is a novel apparatus or machine foruse in painting small objects, and. it provides mechanismwherebya'number of objects. may be rotatably mounted upon a movablecarrier, which carrier when loaded with the objects can be placed upon arotatable support, and; as the latter is rotated the objects besuccessively moved past-the operative point where they can be subjectedto the action of the painting devices and 10 then moved on out of theway; and when all the objects have been painted the painted objects canbe removed and placed to one side to permit the objects to dry, whileanother carrier filled with objects to be painted can be placed upon thesupport, sothat the painting operations may be practicallycontinuous.

The invention. further provides means whereby each of the objects to'bepainted may be rotated while passing the operative point so that allparts of the object will be conveniently presented to the paintingdevice, enabling a rapid and smooth application of paint to all surfacesof the object.

In.the. accompanying drawings is illustrated 35 one practical mechanism.embodying the invention and some. modifications, and I will describe theinvention with referencetheretoto enable others to adopt and use thesame; but I do not. consider the invention restricted .to the. specificconstructions illustrated, and refer to the claims for the novelvfeatures of the invention and novel combination of parts forwhichprotection is desired.

In said drawings:-.- I Fig. 1 is. a front elevation of a painting boothcontaining my novel mechanism.

Fig. 2 is a side elevation thereof partly broken away. Fig. 3 is anenlarged top plan view of the support and carrier.

Fig. 4 is an enlarged section on the line i -i, Fig.3. Fig. 5 is anenlarged detail view of one of the bushings.

Fig. 6 is a detail section form of the friction block.

Fig. 7 is adetail section of a modified form of object holder. 7

showing a. modified Fig. 8 is a detail section showing anothermOdification. v In the machine shown, arotatablev support 1 is attachedto or supported on the upper end of a vertical shaft 1s, and is providedwith a hub member 1a in'which the upper end of shaft is is splined orpinned. Hub la' rests on a bearing 11; mounted on transverse bars 2aattached to the side bars of a frame? of any suitable construction inwhich the mechanism may be supported; Preferably this frame forms ahousing or booth,

- open at its front side for ready access to the supthe carrier loadedwith port and to facilitate the placing orremoval of I the carriershereinafter referred-to. The shaftis may be rotated by any'suitablemeans, being preferably driven'by an. electric motor Im at its lowerend, as indicated in Figs. 1 and}. V

' The carrier 3 is preferably'zo-f approximately the same exteriordiameter ,asthesupport, and adapted to be placed upon the support 1.(see, Figs.

1-3). This carrier may be made of wood for purposes of lightness or maybe made of metal. if preferred. As shown it is provided withtransversetie bars or spokes '3a,- andhandles 3b; by

which the carrier may be readilytransported. When .the'c'arrier isannularI preferably. provide the support 1 with segmental; blocks 1eonits upper side which are adapted toenter between the spokes 3a of thecarrier and engagethe inner periphery thereof, and accurately, andfixedlyon the support 1, so that the carrier will rotate. therewith.Preferablyin the 'peripheryof the carrier is an annular channel orgroove 30, and in the car'- rier adjacent the groove are a number.ofspaced thus position; the carrier I bores or holes 3d in which theshanksyor supports,

of the objects A to bepaintfed may be placed as indicated in thedrawings, :In Figs. 4, '7; and 8 the objectsare shown assliders', orgliderswhich' have pins a adapted to be inserted inthe legs of furnitureandthe like; and the pinscan be slipped intothe holes 3d-as indicated inFigs; ,4. and 6, the holes 3d intersecting the rear edges of -thechannel 3;: so that the pins can comeinto contact with a friction memberhereinafteridescribedfas the carrier is rotated; and the pins will berotated by frictional contact with such member and rotate the objects astheypass thepainting.

PQm .1?

as shown in Figs: 1-4;, the friction member comprises a block fl whichissupported ona bar 21. adjacent th abl 'lh s 'b eq ilies a n Ql ction4a, on its side adjacent the carrier, which is curved corresponding totheperipheryof the carrier 3 and is adapted to project into the chan;nel 3c thereinandcontact withthe shanlgsfor pins aof the objectsfmountedonthe carrier. "The block 4 is yieldingly pressed inward by means ofcoiled springs .40. and is guided by means ofbolts 4d extendingthroughslotshin the blocleand its tappedintoa plateI ie .bolted to theba r;,2f-

as shown in Fig. 4. The inner-edge of the flange 4a is preferablyprovided with airictional'facing; 4) of rubber, .wood, or. othersuitable material ,to,

enhance the frictional,contact'with the metal shanks a of theobjects andthe friction block. .1 A; are made of different'sizesand diferentdiameters, according to The objects their pins (1 of. A the size of theobject; and in order to hold different sized pins a properly in thecarrier I provide removable interchangeable bushings, as 3s (Fig. 5),which can beinserted in the holes 3d in thecarrien Thesefbushings arenon-rotatable are providedwithrbores of different diameters to suitthe'different'diam'eters, of pins a. The

: construction of the parts being obvious from the illustration in thedrawings.

While' the invention as shown is primarilybushings. are also providedwith transverse notches 315 in their front sides which correspond.adapted for use with objects'such as A,zit'lS ob viously adapted foruse with other objects, and

therefore, instead of. having holes inthe carrier as above described,the carrier might beprovided With'a number of brackets as 5 (Fig. 7)attachedfltoits'rim by'b'olts 5a or other: suitable fastenings; eachbracket having a groove or chan nel 5c in itsouter surface forthereception of the projecting'lip of the friction block, and the pinsof the articles above described might be inserted through'the openingsin the .top and-bottom of v this channel. i

' friction disk or pinion,

shown'adapted to engage the friction member 4:1: j

' In'the construction shown in Fig. 7 aLrQtatable stub shaftfidisrjournaled in the bracket 5 and supported on thebracket 5 by a collar5e,'and on the upper end of the shaft Sdis a socket member 5f in whichmay be placed a holder 5g of, any suitable kind adapted to support anobject to be painted. In the'example shown an objectA is shown asmounted thereon, but this is merely illustrative and not limitingyandthe holder 5 could be readily made to support an article of any shapewhich it is desired to paint.

On the-lower end of shaft 501 may be fastened a In Fig-'7 adisktris asthe carrier is rotated, in'themanner above described, to cause theobject to rotate as itp'ass'e's the-painting point. Instead of a disk agear 5s might be used, as in Fig. 8, such gear meshing with arack 4s-onthe yieldable member 4twhich otherhousing having an wise correspondswith the friction member shown inFigG."

'In'theconstruction shown in Fig. 8 the holder 5] may. carry a -head'5lcof rubber or othersuit' able material which is adapted to enter a socketin the bottom of the object to be treated. Obviously as stated the heads5g or 576 may be shaped to engage and" hold the particular'kind ofobject to be painted.

In some cases it may be desirable to warm the objects or heat thempriorto the painting operation, and for this purpose the support l'maybe housedas indicatedias H in Figs. 1 and 2, said opening in itsfrontthrough and carrier partially project; provided with a door D whichwhich the support this housing being '1 can be readily opene d to permitthe placingor removalof the carriers, and which maybe pro videdwithjiopenings d at the points where during a 'therota'tion of thecarrier thearticles would have In this way after the carrier [enough tobe heatedbefore to pass through the door when the latter is closed.

is placed on-the sup- .in the housing long the painting begins port theobjects can be left be painted. After a carrier isloaded with theobjects to bepainted it is placed upon the support,

andas the latter rotates an oper tor standing at the front'of the boothpaints the objects, preferablyby means of a spray gun, and as theobjects are rotated on their own axes as they pass the operator allpoints of the objects are presented to the operator for painting withouthis having to handle them. After all the objects on the carrier havebeenpaintd, the carrier; con-- taining the painted objects can beremoved and set aside with the painted objects until they have dried;and another carrier with unpainted-ob jects placedfin position onthesupport, 1 and the objectspainted as described. i he time requiredfor'painting an object with this machine, is very short and with a:sufficient 'number of carriers oneoperatorgand an assistant to load thecarriers place them on the support and remove them when they arepainted, can

paint a large time.

ltclaimr i I. In a machine for painting objects; a rotatable support,means for rotating said support, a carrier adapted to be detach'ablymounted upon number of articles "in a very short 7 said support andbodily removable therefrom} said carrier being" also adapted to carryplurality of s aced objects arranged in an "annular series thereonadjacent its periphery, and means for axially rotating the objectsmounted llpCIi the carrier as they move thereby past the paint ap-'plying point, said carrierbeing bodily removable from the support withall the objects thereon after completion of the painting operation, thesupport having spaced segmental blocks on its upper side, and thecarrier-having intersecting spoke members extending between the ends ofadjacent. blocksf 2. Inmechanism' for painting objects of the characterspecified, a'rotatable support, a carrier removably mounted upon saidsupport, said carrier havinga peripheral groove and'an annular series ofspaced holes adjacent its periphery perpendicular to and partially.intersecting said groove adapted to receive object supporting stems,

and a yieldable r nem ber mounted adjacent'the" carrier upon' thesupport and periphery of the adapted tocause the individualobjectstoaxially rotate as they are moved therepast by the carrier.-

1 In mechanism for painting objectsof the character its periphery andperpendicularto and partially intersecting the groove object supportingmem--, bers mountedin said holes, and meansadja'cent the periphery ofthe carrier upon the support and cause them'to axially rotate on thecarrier. 1, p

specified, arotatable support. an anf nular carrier adapted to bemovablyand detach- 7 its adaptedto'engage the individual objectsupports,

as they are moved therep'a'st by vtheca'rri'er CLIFFORD"A.JSCHAC I IT."[i..s.]

